I watched a couple of his early fights live. People argue about who was the best heavyweight of all time, but no one EVER could stand against Mike Tyson in his prime. Watching him completely overpower an opponent and knock him out cold in about 2 minutes flat is something you had to see to believe. And he did it over and over until he went to prison and after he got out, his energy and strength never returned. After that he was a broken man. He was a shadow of his early self in the Holyfield fights. At the onset of his career he would have destroyed Holyfield or Lewis without breaking a sweat.